/*
 *    Copyright 2006-2020 the original author or authors.
 *
 *    Licensed under the Apache License, Version 2.0 (the "License");
 *    you may not use this file except in compliance with the License.
 *    You may obtain a copy of the License at
 *
 *       http://www.apache.org/licenses/LICENSE-2.0
 *
 *    Unless required by applicable law or agreed to in writing, software
 *    distributed under the License is distributed on an "AS IS" BASIS,
 *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *    See the License for the specific language governing permissions and
 *    limitations under the License.
 */
package org.mybatis.generator.api.dom.kotlin;

import java.util.ArrayList;
import java.util.List;
import java.util.Objects;
import java.util.Optional;

public class KotlinArg {

	private final String name;
	private final String dataType;
	private final String initializationString;
	private final List<String> annotations;

	private KotlinArg(Builder builder) {
		name = Objects.requireNonNull(builder.name);
		dataType = builder.dataType;
		initializationString = builder.initializationString;
		annotations = builder.annotations;
	}

	public String getName() {
		return name;
	}

	public Optional<String> getInitializationString() {
		return Optional.ofNullable(initializationString);
	}

	public Optional<String> getDataType() {
		return Optional.ofNullable(dataType);
	}

	public List<String> getAnnotations() {
		return annotations;
	}

	public static Builder newArg(String name) {
		return new Builder(name);
	}

	public static class Builder {
		private final String name;
		private String dataType;
		private String initializationString;
		private final List<String> annotations = new ArrayList<>();

		private Builder(String name) {
			this.name = name;
		}

		public Builder withInitializationString(String initializationString) {
			this.initializationString = initializationString;
			return this;
		}

		public Builder withDataType(String dataType) {
			this.dataType = dataType;
			return this;
		}

		public Builder withAnnotation(String annotation) {
			annotations.add(annotation);
			return this;
		}

		public KotlinArg build() {
			return new KotlinArg(this);
		}
	}
}
